RoHS stands for Restriction of Hazardous Substances. RoHS, also known as Directive 2002/95/EC, originated in the European Union and restricts the use of specific hazardous materials found in electrical and electronic products (known as EEE). All applicable products in the EU market after July 1, 2006 must pass RoHS compliance. The substances banned under RoHS are lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (CrVI), polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four different phthalates (DEHP, BBP, BBP, DIBP). RoHS <b>在您最需要的时候，为您提供更高的性能</b> 当低于规格限制操作时，Intel® Turbo Boost Technology 2.0 可以通过提高操作频率加速处理器和图形性能。最大频率取决于工作负荷、硬件、软件和整体系统配置。 2.0 Does not contain "conflict minerals": tantalum, tin, tungsten, and gold. Y You can spend more time running your business and less time concerned with IT when you have Windows 10 Pro. Build-in security, enhanced productivity features, and easy-to-implement management tools provide an essential foundation to keep your business humming. Windows 10 Pro 英特尔® 酷睿™ 处理器 — 工作、娱乐、创作高效衔接，随心而换。 性能更加强劲，赋予空前的专注力、创作力和连接性. 提高了连接性标准. 一分钟内完成视频编辑. Intel Core i5-7xxx 联想 ThinkPad X1 (2nd Gen), 30.5 cm (12"), 2160 x 1440 像素, 256 GB, 8 GB, Windows 10 Pro, 黑色 联想 ThinkPad X1 (2nd Gen). 显示器尺寸（对角长）: 30.5 cm (12"), 显示器分辨率: 2160 x 1440 像素. 内部存储容量: 256 GB. 处理器频率: 1.2 GHz, 处理器系列: 英特尔®酷睿™ i5, 处理器: i5-7Y54. 内置存储器: 8 GB. 后置摄像头分辨率（数字）: 8 MP, 后置（主要）摄像头类型: 单摄像头, 前置摄像头分辨率（数字）: 2 MP. Wi-Fi标准: Wi-Fi 5 (802.11ac). 集成读卡器. 重量: 1.07 kg. 已预装操作系统: Windows 10 Pro. 产品色彩: 黑色